What Is an ISO Decision Log Excel Template?

An ISO Decision Log Excel Template is a structured spreadsheet used to record, track, and maintain a clear history of important decisions made during a project. Without a formal decision log, teams may later struggle to understand why a particular course of action was selected, who proposed it, who approved it, or what follow-up action was required.

Key Elements of an ISO Decision Log Excel Template

1. SL No. – Provides an incremental reference number for each decision recorded in the log.

2. Decision Details – Describes the decision that needs to be made or has been made.

3. Impact – Records the expected effect of the decision on the project.

4. Proposed On – Records when the decision was proposed.

5. Proposed By – Identifies the individual, team, or stakeholder who proposed the decision.

6. Status – Shows the current state of the decision.

Why Is Decision Logging Important for ISO Projects?

ISO implementation projects frequently require decisions from management, process owners, project managers, consultants, and technical specialists. If these decisions are not recorded, project teams may later face confusion about responsibility, rationale, or expected follow-up.

1. Supports Management Accountability – Records who made or approved important project decisions.

2. Supports Quality Management in Projects – Provides structured information that supports project governance and management responsibility under ISO 10006.

3. Improves Project Continuity – New team members can understand the history of key project decisions.

4. Improves Change Control – Decision records can support project changes by showing what was approved and why.

5. Supports Risk-Based Decisions – Significant risk-related choices can be documented and reviewed.

6. Improves Audit Readiness – Creates a useful trail of management decisions during implementation and project delivery.

7. Supports Certification Preparation – Documents important decisions affecting scope, responsibilities, timelines, controls, and readiness activities.

8. Supports Continual Improvement – Past decisions can be reviewed to understand which choices produced successful outcomes.

How to Use an ISO Decision Log Excel Template

1. Identify the Decision – Clearly define what needs to be decided.

2. Assign a Serial Number – Add the next sequential number in the register.

3. Enter Decision Details – Describe the issue and required decision.

4. Assess the Impact – Record the expected effect on the project.

5. Record the Proposal Date – Enter when the decision was formally raised.

6. Identify Who Proposed It – Record the relevant person or team.

7. Set the Current Status – Mark the decision as Pending, Approved, Declined, or Abandoned.

8. Obtain Approval – Submit the decision to the appropriate authority where required.

9. Record the Approver – Enter who approved the final decision.

10. Record the Approval Date – Document when approval occurred.

11. Enter Resulting Actions – Record any follow-up activities created by the decision.

12. Review Pending Decisions – Monitor unresolved decisions during project meetings.

13. Update Actions – Ensure actions generated by approved decisions are completed.

14. Retain the Log – Maintain the decision register as part of the project record.

Best Practices for Maintaining a Decision Log

Record Decisions Promptly – Add important decisions while information is still current.

Keep Decision Descriptions Clear – Someone reviewing the register months later should understand what was decided.

Identify the Approver – Significant decisions should have clear accountability.

Record Impact – Explain what the decision changes or affects.

Track Pending Decisions – Unresolved decisions can become project bottlenecks.

Link Resulting Actions – Ensure approved decisions lead to implementation where required.

Avoid Recording Every Minor Conversation – Focus on decisions important enough to affect project direction, governance, scope, risk, or performance.

Maintain Consistent Status Values – Standard terminology makes the register easier to filter and review.

Retain Supporting Evidence – Reference meeting minutes, change requests, risk records, or approvals where appropriate.

ISO Standards Supported

The ISO Decision Log Excel Template can support project governance and decision traceability across several ISO management-system projects.

ISO 10006 – Quality Management in Projects

ISO 10006:2017 provides guidance on applying quality management in projects.

It addresses:

• Quality management systems in projects

• Management responsibility

• Resource management

• Project realization

• Measurement

• Analysis

• Improvement

A Decision Log can support these areas by improving management accountability, decision traceability, project governance, and follow-up of resulting actions.

ISO 10006 does not require organizations to maintain a specific Decision Log Excel Template.

The spreadsheet should therefore be considered a supporting project-governance tool.

ISO 9001 – Quality Management Systems

The template can support documentation of important project and QMS decisions involving:

• Scope

• Objectives

• Resources

• Processes

• Improvement actions

• Certification planning

ISO/IEC 27001 – Information Security Management Systems

The Decision Log can support management-level decisions involving:

• ISMS scope

• Risk acceptance

• Risk treatment

• Control priorities

• Information-security projects

• Certification planning

Formal ISMS risk and control records should remain separate where required.

ISO 14001 – Environmental Management Systems

Organizations can use the log to record important decisions relating to environmental objectives, controls, compliance actions, implementation priorities, and improvement activities.

ISO 45001 – Occupational Health and Safety Management Systems

The template can support management decisions relating to OH&S projects, resources, controls, priorities, and improvement initiatives.

Formal hazard and OH&S risk-management records should remain separate.

ISO/IEC 20000-1 – IT Service Management Systems

The Decision Log can support governance of service-management implementation, process design, tooling, SLAs, suppliers, and improvement initiatives.

ISO 22301 – Business Continuity Management Systems

Organizations can use the log to document important decisions involving recovery strategies, continuity priorities, exercises, facilities, suppliers, and resilience initiatives.

ISO/IEC 42001 – Artificial Intelligence Management Systems

The template can support management decisions relating to AI scope, AI deployment, risk treatments, governance, oversight, and improvement.

Integrated Management Systems

Organizations operating several ISO standards can use one Decision Log to maintain a centralized record of important cross-framework project and management decisions.

Conclusion

An ISO Decision Log Excel Template provides a simple and structured method for documenting important project decisions, their expected impact, approval status, responsible parties, and resulting actions. The current workbook includes SL No., Decision Details, Impact, Proposed On, Proposed By, Status, Approved By and Date, and Resulting Action/Comments. This structure creates a practical decision audit trail and helps project managers maintain accountability throughout project delivery.